.blog h2{
    font-size: 20px;
    font-weight: 700;
    padding: 20px;
    text-align: center;
    padding: 10px 0;
}

.blog #time{
    color: green;
    text-align: center;
    margin-top: 10px;
}

.blog #des{
    color: black;
    text-indent: 2em;
    margin-top: 10px;
    padding: 0 10px;
}

.blog a{
    width: 120px;
    height: 40px;
    line-height: 40px;
    margin-top: 10px;
    display: block;
    text-align: center;
    margin: 10px auto 0 auto;
    text-decoration: none;
    border:2px solid black;
}